Mercedes-benz P179a12 ✦ Simple

Ironically, the most common trigger is not a broken transmission, but a weak main or auxiliary battery. Low voltage can cause the DSM to malfunction or "spike," resulting in internal damage that triggers the P179A12 code.

The car will not shift out of park, rendering it immobile. mercedes-benz p179a12

Repairing the P179A12 code often requires professional help due to the "theft-relevant" nature of the module. 1. Replace the Intelligent Servo Module (ISM) Ironically, the most common trigger is not a